For many years, world-renowned biologist Frans de Waal studied the lives of chimpanzees and bonobos. During his research, he discovered clear signs of ethical behavior in the primate community. According to the author, morality is not a purely human trait, and its origins should be sought in animals. Empathy and other manifestations of a kind of morality are inherent in monkeys, dogs, elephants, and even reptiles.

In addition to a fascinating story about ethical behavior in the primate world, the author raises profound philosophical questions related to science and religion. How and when did morality arise? What influence has religion had on the formation of ethics?
What happens to a society where the role of religion declines, and is Dostoevsky's hero Ivan Karamazov right when he says: 'If there is no God, I have the right to rob my neighbor'?